1380862939 has 2 divisors, whose sum is σ = 1380862940. Its totient is φ = 1380862938.

The previous prime is 1380862919. The next prime is 1380862957. The reversal of 1380862939 is 9392680831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1380862939 - 2¹³ = 1380854747 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1380862892 and 1380862901.

It is not a weakly prime, because it can be changed into another prime (1380862919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690431469 + 690431470.

It is an arithmetic number, because the mean of its divisors is an integer number (690431470).

Almost surely, 2^1380862939 is an apocalyptic number.

1380862939 is a deficient number, since it is larger than the sum of its proper divisors (1).

1380862939 is an equidigital number, since it uses as much as digits as its factorization.

1380862939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 559872, while the sum is 49.

The square root of 1380862939 is about 37159.9641953541. The cubic root of 1380862939 is about 1113.5682962820.

The spelling of 1380862939 in words is "one billion, three hundred eighty million, eight hundred sixty-two thousand, nine hundred thirty-nine".